SOME CRYPTOGAMS FROM CHRISTMAS ISLAND 339 
Siphonocladus egal Bornet ex Hariot in Journ. de Bot. 
». 56, pa Stary (188 
"Flying Fish Bere no. 239. 
Java 
-¥ Caulerpa peltata Lamour. in Journ. de Bot. p. 145 (1809). 
Waterfall, no. 242 pro parte. Bleached plants, intermingled in 
a mass with Hypnea pannosa. 
Geogr. Distr. Red Sea. Indian Ocean. Cape of Good Hope. 
N. Atlantic. WestIndies. S. Pacific. 
7. oapeieage lacerata J. Ag. Till Alg. Syst. viii. p. 54 (1886). 
Flying Fish Cove, no. 224. Waterfall Cove, no. 24 
Geogr Distr. Red Sea. Mauritius. Philippines. Friendly Islands. 
8. Sargassum Wightit Grev. in J. Ag. Sp. Alg. i. p. 329 (1848). 
tan Wa terfall, Oct. 1904, n 
. Distr. Indian Ocdah. 
9. pate et Ag. Sp. Alg. i. p. 266 (1848). 
Flying Fish Cove, no. 226. 
ger. pee factiea Ocean. N. and §. Pacific. 
Commersonit se in Duperrey Voy. de la Coquille, 
: ut 1888), t. 21, fig. 2 (182 
g Fish ve, no 
5 . Indian Ocean. N.and §. Pacific. West Indies. 
11. Dictyota dichotoma Lamour. in Desy. Journ. de Bot. ii. p. 42 
809). 
tS 
1 i 
Waterfall Cove, Oct. 1904. 
ogr. Distr. Cosmo 
The habit of this s specimen. is very peculiar, the plant being 
attached to its seer by rhizoids given off from any part of 
the thallus. We sked Mr. Lloyd Williams his opinion on it, 
and he kindly wien 44 us as follows : ‘‘ Besides the rhizoids, which 
you call attention to, there are numerous adventitious aia 
The nearest approach to this found growing on our coasts a 
dwarf plants which grow on surf-beaten rocks about the Himanthalig 
8, 
mixed with calcareous alge, etc. In such situations, besides being 
very small, the plants have numerous rhizoids and wl veeititioes 
branches, and in addition the reproductive cells instead of maturing 
li ; 
With regard to rhizoids, the formation of them is very easily induced ; 
. dirt or even zoogloea masses cause them to grow on any part of the 
surface.” Neither Mr. Lloyd Williams nor we ourselves found any 
reproductive organs on this specimen. 
12. Chnoospora fastigiata J. Ag. Sp. Alg. i. p. 171 (1848). 
Near Wa 1, no. 283. : ; 
a Distr. Warm Atlantic. Warm Pacific. Indian Ocean. 
Ectocarpus spongiosus Dickie in Journ. Linn. Soe. xiv. p. 191 
(1874). ses 
